Shark Myths—Sharks Eat Anything, Eat Continuously and Must Swim to Breath
August 27, 2009

Blue Shark

Blue Shark

Sharks will eat anything.
Wrong. Sharks are pretty discriminate eaters. Even if we didn’t know this from examining the stomach contents of dissected sharks, it’s obvious from the wide array of adaptations found in different shark species. As I said in my shark diversity posts, each shark has evolved to fit a specific diet. Unless they’re injured or starving, there’s little motivation for a shark to waste energy pursuing something that isn’t their normal prey. Although tiger sharks have been nicknamed the “garbage cans of the sea” because a few odd things (license plates, shoes, glass bottles, ect…) have been found in their stomachs, these finds are actually quite rare.

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